Revert -Wno-error: the JavaAPI setDaemon fix was the real fix

Adding Thread.setDaemon to the JavaAPI makes the translator emit the wrapper AND
the cross-class include, so there are no implicit declarations left to tolerate
(verified: zero in the demo build). Drop the -Wno-error tolerance so the zig build
stays strict and would catch a real future regression.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: shai-almog

.github/workflows/linux-build-run.yml

@@ -192,12 +192,7 @@ jobs:
           sudo tee /usr/local/bin/cn1-zig-cc >/dev/null << 'WRAP'
           #!/bin/sh
           ARCH=$(uname -m)
-          # -Wno-error=implicit-function-declaration: the translator occasionally
-          # omits a cross-class #include for a void runtime wrapper the generated C
-          # calls (harmless under gcc; clang/zig promotes it to an error). The
-          # wrapper is still defined, so it links and runs -- match gcc here.
           exec zig cc -target ${ARCH}-linux-gnu.2.28 -D_DEFAULT_SOURCE -Wno-macro-redefined \
-            -Wno-error=implicit-function-declaration \
             -L/usr/lib/${ARCH}-linux-gnu -L/lib/${ARCH}-linux-gnu "$@"
           WRAP
           sudo chmod +x /usr/local/bin/cn1-zig-cc

maven/codenameone-maven-plugin/src/main/java/com/codename1/builders/LinuxNativeBuilder.java

@@ -402,11 +402,6 @@ private File writeZigCcWrapper(String arch, boolean musl) {
                 // system paths). The arch dir is resolved at run time so the same
                 // wrapper works native or cross.
                 sh.append(" -D_DEFAULT_SOURCE -Wno-macro-redefined");
-                // The translator occasionally omits a cross-class include for a void
-                // runtime wrapper the generated C calls (a no-op under gcc; clang/zig
-                // makes it an error). It is still defined, so match gcc and keep it a
-                // warning rather than failing the build.
-                sh.append(" -Wno-error=implicit-function-declaration");
                 sh.append(" -L/usr/lib/$(uname -m)-linux-gnu -L/usr/lib64 -L/lib/$(uname -m)-linux-gnu");
             }
             sh.append(" \"$@\"\n");